Light extracting substrate for organic light emitting diode
US11943960B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | Feb 28, 2020 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Oct 5, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49885
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light extraction substrate includes a glass substrate having a first surface and a second surface. A first light extraction region can be defined on and/or adjacent the first surface. The first light extraction region includes nanoparticles. A second light extraction region can be defined on at least a part of the second surface. The second light extraction region has a surface roughness of at least 10 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.